Earlier today (okay, technically yesterday) I came across the
concept of bogons, or IP address not officially allocated for
use. They even provide a
current list of non-routed IP
blocks. Curious about the effect of using said list to block potential
spam, I setup a test, consisting of 565,012 tuples (we've stepped up testing
of the greylist daemon over the
past week) previously processed (I'm keeping some extensive logs here),
added the 6,803 IP blocks not
allocated, and let it rip.
An hour and a half later, I had my answer.
Of 565,012 tuples processed, only 6,117 came from non-allocated IP space.
It's a little over 1%.
I don't think it's worth adding the non-allocated IP space to the greylist daemon. Not that it makes the
daemon run slower, it's just that an IP list of that size takes up quite a bit of memory due
to the trie
structure used to store the table, and for such a small gain, I don't
feel it's really worth it.
You have my permission to link freely to any entry here. Go
ahead, I won't bite. I promise.
The dates are the permanent links to that day's entries (or
entry, if there is only one entry). The titles are the permanent
links to that entry only. The format for the links are
simple: Start with the base link for this site: https://boston.conman.org/, then add the date you are
interested in, say 2000/08/01,
so that would make the final URL:
https://boston.conman.org/2000/08/01
You can also specify the entire month by leaving off the day
portion. You can even select an arbitrary portion of time.
You may also note subtle shading of the links and that's
intentional: the “closer” the link is (relative to the
page) the “brighter” it appears. It's an experiment in
using color shading to denote the distance a link is from here. If
you don't notice it, don't worry; it's not all that
important.
It is assumed that every brand name, slogan, corporate name,
symbol, design element, et cetera mentioned in these pages is a
protected and/or trademarked entity, the sole property of its
owner(s), and acknowledgement of this status is implied.